p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

Here, we report that the lncRNA FER1L4 (fer-1-like family member 4, pseudogene) acts as a competing endogenous RNA (ceRNA) to regulate the expression of PTEN (a well-known tumor suppressor gene) by taking up miR-106a-5p in gastric cancer.

Long noncoding RNA FER1L4 suppresses cancer cell growth by acting as a competing endogenous RNA and regulating PTEN expression

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

For instance, through its miRNA response elements (MREs) to compete for miR-106a-5p, lncRNA-FER1L4 regulates the expression of PTEN, RB1, RUNX1, VEGFA, CDKN1A, E2F1, HIPK3, IL-10, and PAK7.

Long noncoding RNA associated-competing endogenous RNAs in gastric cancer PTENP1 Functions as a Competing Endogenous RNA (ceRNA) to Regulate PTEN Expression by Sponging miR-499-5p.

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

We also found that LINC00657 could inhibit tumor growth in vivo. Further experiments demonstrated that down-regulated LINC00657 increased the expression of miR-106a-5p. miR-106a-5p decreased the abundances of PTEN protein, while had no impact on PTEN mRNA. Moreover, we identified that both LINC00657 and PTEN mRNA were targets of miR-106a-5p by using dual-luciferase reporter assay.

Long non-coding RNA 657 suppresses hepatocellular carcinoma cell growth by acting as a molecular sponge of miR-106a-5p to regulate PTEN expression.

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

In order to identify and characterize the PTENP1~miRNA~PTEN ceRNA network in GC, we first determined PTENP1 levels in clinical GC samples and found that PTENP1 and PTEN were concurrently downregulated in these samples. We further demonstrated that PTENP1 could act as a ceRNA to sponge miR-106b and miR-93 from targeting PTEN for downregulation using a novel ceRNA in vitro gradient assay.

Long non-coding RNA PTENP1 functions as a ceRNA to modulate PTEN level by decoying miR-106b and miR-93 in gastric cancer

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

We further demonstrated that PTENP1 could act as a ceRNA to sponge miR-106b and miR-93 from targeting PTEN for downregulation using a novel ceRNA in vitro gradient assay.

Long non-coding RNA PTENP1 functions as a ceRNA to modulate PTEN level by decoying miR-106b and miR-93 in gastric cancer.

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

CASC2 up-regulated PTEN protein and down-regulated p-AKT protein through regulating miR-181a, and the effect of CASC2 on PTEN and p-AKT could be partially restored by miR-181a. With TMZ-resistant glioma tissues, miR-181a was up-regulated while PTEN was down-regulated.

LncRNA CASC2 Interacts With miR-181a to Modulate Glioma Growth and Resistance to TMZ Through PTEN Pathway

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

MiR-181a was up-regulated in HCC tissues and its expression level in metastatic HCC tissues was much higher than in non-metastasis samples. PTEN was found to be a target gene of miR-181a. MiR-181a had multiple binding sites with the long non-coding RNA (lncRNA) XIST.

Long non-coding RNA XIST regulates PTEN expression by sponging miR-181a and promotes hepatocellular carcinoma progression

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

The effects of lincRNA-p21 on PTEN expression and HSC activation were inhibited by miR-181b mimics. We demonstrated that lincRNA-p21 enhanced PTEN expression by competitively binding miR-181b.

Identification of a Novel lincRNA-p21-miR-181b-PTEN Signaling Cascade in Liver Fibrosis

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

Meanwhile PTEN is an advantageous factor to affect H19 expression, through attenuating Hif-1α stability. Hif-1α also positively correlates with H19 in human glioblastoma samples depending on PTEN status. ChIP and luciferase reporter assays showed that Hif-1α induced H19 transcription through directly binding to the H19 promoter. Furthermore, Hif-1α upregulated specific protein 1 (SP1) expression in glioblastomas cells in vitro and in vivo, and SP1 also strongly interacted with the H19 promoter to promote H19 expression under hypoxia. We also showed that H19 acts as a molecular sponge that binds miR-181d, relieving inhibition of β-catenin expression.

Hypoxia induces H19 expression through direct and indirect Hif-1α activity, promoting oncogenic effects in glioblastoma

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

The further molecular mechanisms of HOTAIR action in CH demonstrated that HOTAIR may act as a competing endogenous RNA (ceRNA) for miR-19, thereby modulating the dis-inhibition of its endogenous target PTEN and playing an important role in inhibiting CH progress.

HOTAIR functions as a competing endogenous RNA to regulate PTEN expression by inhibiting miR-19 in cardiac hypertrophy

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

In DU145 prostate cancer cells, PTEN-targeting microRNAs miR-19b and miR-20a suppress both PTEN and PTENP1 mRNA abundance

A coding-independent function of gene and pseudogene mRNAs regulates tumour biology

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

As expected, luciferase results verified the putative target site and also revealed the complementary binding between miR-19a and MEG3. miR-19a represses the expression of PTEN and promotes glioma cell proliferation, migration, and invasion

Long Noncoding RNA MEG3 Suppresses Glioma Cell Proliferation, Migration, and Invasion By Acting As Competing Endogenous RNA of MiR-19a

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

In DU145 prostate cancer cells, PTEN-targeting microRNAs miR-19b and miR-20a suppress both PTEN and PTENP1 mRNA abundance

A coding-independent function of gene and pseudogene mRNAs regulates tumour biology

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

Moreover, GAS5 that upregulated or downregulated the expression of PDCD4 and PTEN was reversed by inhibiting or overexpressing miR-21 level in Bel-7402 and HCCLM3 cells.

Long noncoding RNA GAS5 suppresses the migration and invasion of hepatocellular carcinoma cells via miR-21

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

GAS5 suppresses cancer proliferation by acting as a molecular sponge for miR-21, leading to the de-repression of phosphatase and tensin homologs (PTEN), the endogenous target of miR-21.

Downregulation of LncRNA GAS5 causes trastuzumab resistance in breast cancer

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

Mechanistically, we demonstrated that circ-ITCH up-regulates the expression of miR-17 and miR-224 target gene p21 and PTEN through 'sponging' miR-17 and miR-224, which suppressed the aggressive biological behaviors of BCa.

Circular RNA circ-ITCH inhibits bladder cancer progression by sponging miR-17/miR-224 and regulating p21, PTEN expression.

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

In particular, our results suggested that lncRNA-XIST may act as a competitive endogenous RNA, effectively becoming a sink for miR-494, leading to derepression of its target gene, phosphatase and tensin homolog deleted on chromosome ten (PTEN). In addition, an inverse relationship between lncRNA-XIST and miR-494 was observed in spinal cord tissues of SCI rats. Further study demonstrated that antagomiR-494 could reverse the protective effects of lncRNA-XIST knockdown on SCI rats through blocking the PTEN/PI3K/AKT signaling pathway.

Long Coding RNA XIST Contributes to Neuronal Apoptosis through the Downregulation of AKT Phosphorylation and Is Negatively Regulated by miR-494 in Rat Spinal Cord Injury

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

In particular, our results suggested that lncRNA-XIST may act as a competitive endogenous RNA, effectively becoming a sink for miR-494, leading to derepression of its target gene, phosphatase and tensin homolog deleted on chromosome ten (PTEN).

Long Coding RNA XIST Contributes to Neuronal Apoptosis through the Downregulation of AKT Phosphorylation and Is Negatively Regulated by miR-494 in Rat Spinal Cord Injury

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

Pseudogene PTENP1 Functions as a Competing Endogenous RNA (ceRNA) to Regulate PTEN Expression by Sponging miR-499-5p

Pseudogene PTENP1 Functions as a Competing Endogenous RNA (ceRNA) to Regulate PTEN Expression by Sponging miR-499-5p.

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

LncRNA H19-derived microRNA (miR-675) are overexpressed in neointima of balloon-injured artery. We further validated that PTEN is the target gene of miR-675 as demonstrated by luciferase assay. Finally, the results of the rescue experiment indicated that LncRNA H19 promoted the proliferation of T/G HA-VSMC in a miR-675-dependent manner.

Long noncoding RNA H19-derived miR-675 aggravates restenosis by targeting PTEN

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

Furthermore, overexpression of ciRS-7 blocked the miR-7-induced tumor suppression in MGC-803 and HGC-27 cells and led to a more aggressive oncogenic phenotype, via antagonizing miR-7-mediated PTEN/PI3K/AKT pathway.

Overexpression of Circular RNA ciRS-7 Abrogates the Tumor Suppressive Effect of miR-7 on Gastric Cancer via PTEN/PI3K/AKT Signaling Pathway.

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

In order to identify and characterize the PTENP1~miRNA~PTEN ceRNA network in GC, we first determined PTENP1 levels in clinical GC samples and found that PTENP1 and PTEN were concurrently downregulated in these samples. We further demonstrated that PTENP1 could act as a ceRNA to sponge miR-106b and miR-93 from targeting PTEN for downregulation using a novel ceRNA in vitro gradient assay.

Long non-coding RNA PTENP1 functions as a ceRNA to modulate PTEN level by decoying miR-106b and miR-93 in gastric cancer

p53 signaling pathway；Inositol phosphate metabolism；Prostate cancer；Phosphatidylinositol signaling system；mTOR signaling pathway；PI3K-Akt signaling pathway；Focal adhesion；Tight junction；Hepatitis B；Pathways in cancer；Melanoma；Endometrial cancer；Glioma；Small cell lung cancer

We further demonstrated that PTENP1 could act as a ceRNA to sponge miR-106b and miR-93 from targeting PTEN for downregulation using a novel ceRNA in vitro gradient assay.

Long non-coding RNA PTENP1 functions as a ceRNA to modulate PTEN level by decoying miR-106b and miR-93 in gastric cancer.